﻿i 
  

  

  190 
  

  

  be 
  taken, 
  or 
  is 
  intended, 
  against 
  the 
  islands 
  referred 
  to, 
  or 
  other 
  

   avocado-producing 
  countries 
  free 
  from 
  this 
  weevil. 
  

  

  Fernald 
  (H. 
  T.). 
  Parasites 
  of 
  the 
  San 
  Jos6 
  Scale.— 
  £'n^om. 
  News, 
  

   Philadelphia, 
  xxv, 
  no. 
  1, 
  Jan. 
  1914, 
  p. 
  39. 
  

  

  The 
  author 
  states 
  that 
  the 
  parasite 
  reported 
  as 
  doing 
  such 
  effective 
  

   work 
  against 
  the 
  San 
  Jose 
  scale 
  in 
  Pennsylvania 
  was 
  discovered 
  at 
  

   Amherst, 
  Mass., 
  in 
  the 
  autumn 
  of 
  1912 
  in 
  great 
  abundance. 
  Specimens 
  

   were 
  sent 
  to 
  Dr. 
  L. 
  0. 
  Howard, 
  who 
  declared 
  it 
  to 
  be 
  a 
  new 
  species 
  of 
  

   Prospaltella. 
  During 
  the 
  present 
  autumn, 
  colonies 
  of 
  this 
  insect 
  have 
  

   been 
  sent 
  to 
  Washington 
  and 
  Georgia 
  in 
  the 
  hope 
  of 
  establishing 
  

   it 
  there. 
  A 
  shipment 
  of 
  the 
  Pennsylvania 
  parasite 
  has 
  made 
  direct 
  

   comparison 
  possible 
  and 
  there 
  can 
  be 
  no 
  doubt 
  that 
  they 
  are 
  the 
  same 
  

   species. 
  This 
  insect 
  was 
  described 
  under 
  the 
  name 
  of 
  P. 
  perniciosi 
  

   by 
  Mr. 
  D. 
  G. 
  Tower 
  and 
  the 
  description 
  published 
  in 
  March 
  1913. 
  

  

  Blodgett 
  (F. 
  M.). 
  Experiments 
  in 
  the 
  Dusting 
  and 
  Spraying 
  of 
  

   Apples. 
  — 
  Cornell 
  Univ. 
  Agric. 
  Expt. 
  Sta., 
  Ithaca, 
  New 
  York, 
  Bull, 
  

   no. 
  340, 
  Jan. 
  1914, 
  pp. 
  149-179, 
  1 
  fig., 
  1 
  pi. 
  

  

  In 
  this 
  Bulletin 
  are 
  given 
  detailed 
  accounts 
  of 
  experiments 
  on 
  the 
  

   dusting 
  and 
  spraying 
  of 
  apples, 
  to 
  determine 
  the 
  effectiveness 
  of 
  a 
  

   dust 
  mixture 
  containing 
  20 
  per 
  cent, 
  of 
  dry 
  powdered 
  arsenate 
  of 
  lead 
  

   and 
  80 
  per 
  cent, 
  of 
  finely 
  divided 
  sulphur, 
  and 
  of 
  a 
  paste 
  containing 
  

   the 
  same 
  materials 
  with 
  a 
  small 
  quantity 
  of 
  a 
  colloidal 
  substance 
  to 
  

   keep 
  the 
  lead 
  and 
  sulphur 
  in 
  suspension, 
  to 
  be 
  applied 
  with 
  water 
  as 
  a 
  

   carrier, 
  as 
  compared 
  with 
  the 
  standard 
  hme-sulphur 
  solution 
  with 
  

   arsenate 
  of 
  lead 
  and 
  with 
  an 
  unsprayed 
  check. 
  The 
  insects 
  causing 
  

   most 
  injury 
  to 
  the 
  apples 
  in 
  1913 
  were 
  those 
  classed 
  under 
  " 
  Bud 
  moth 
  

   and 
  other 
  spring 
  caterpillars 
  " 
  ; 
  these 
  include 
  leaf-rollers, 
  green 
  fruit 
  

   worms, 
  etc. 
  From 
  the 
  tables 
  given 
  it 
  is 
  seen 
  that 
  the 
  best 
  control 
  of 
  

   each 
  of 
  these 
  insects 
  was 
  secured 
  on 
  the 
  dusted 
  plants, 
  with 
  the 
  possible 
  

   exception 
  of 
  those 
  in 
  which 
  codhng 
  moth 
  larvae 
  entered 
  the 
  calyx 
  ; 
  

   there 
  was 
  practically 
  no 
  difference 
  in 
  the 
  insect 
  control 
  between 
  arsenate 
  

   of 
  lead 
  applied 
  with 
  hme-sulphur 
  and 
  that 
  apphed 
  with 
  suspended 
  

   sulphur, 
  the 
  latter, 
  perhaps, 
  proving 
  more 
  effective 
  for 
  bud 
  moth 
  

   and 
  other 
  spring 
  caterpillars 
  and 
  for 
  codling 
  moth 
  and 
  Curculio. 
  

  

  Kanehira 
  ( 
  — 
  ). 
  On 
  some 
  Timbers 
  which 
  resist 
  the 
  Attack 
  of 
  Termites. 
  

   — 
  Indian 
  Forester, 
  Allahabad, 
  x\, 
  no. 
  1, 
  Jan. 
  1914, 
  pp. 
  23-42. 
  

  

  The 
  author, 
  writing 
  from 
  Formosa, 
  states 
  that 
  termites, 
  or 
  white 
  

   ants, 
  are 
  amongst 
  the 
  most 
  destructive 
  insects 
  in 
  that 
  island, 
  attacking 
  

   field 
  crops, 
  buildings 
  and 
  trees. 
  Few 
  dwellings 
  are 
  free 
  from 
  these 
  

   insects, 
  since 
  in 
  Formosa 
  the 
  houses 
  are 
  mostly 
  made 
  of 
  wood, 
  owing 
  

   to 
  the 
  expense 
  of 
  other 
  building 
  material. 
  Among 
  the 
  termites 
  

   attacking 
  buildings 
  are 
  Coptotermes 
  formosanus, 
  Shiraki, 
  Leucotermes 
  

   jiaviceps 
  and 
  Termes 
  formosanus, 
  the 
  method 
  of 
  attack 
  being 
  different 
  

   in 
  each 
  species. 
  Experiments 
  were 
  made 
  on 
  the 
  power 
  of 
  resistance 
  

   of 
  Formosan 
  trees 
  against 
  the 
  attack 
  of 
  termites. 
  Pieces 
  of 
  59 
  dried 
  

   timbers 
  and 
  41 
  undried 
  timbers 
  were 
  used, 
  each 
  piece, 
  1' 
  b" 
  long 
  and 
  

   1\" 
  square, 
  being 
  buried 
  perpendicularly 
  with 
  three 
  inches 
  above 
  

  

  